Weld neck flanges
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| Name | Center distance of mounting holes, K (mm) | Collar diameter at base, N (mm) | Collar height, H2 (mm) | Diameter of the collar for welding, A (mm) | Flange thickness, C2 (mm) | Flange type | Hole diameter, L (mm) | Material | Nominal diameter, DN | Nominal pressure, Class | Nominal size, NPS (inch) | Number of holes, n | Radius of curvature, R1 (mm) | Standard | Steel grade | Thread | Type of connecting surface | Weight 1 pc (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X2CrNi18-9 / 1.4307 | M52x4 | Type DS - with small groove | 158.36 |
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| Stainless steel weld neck flange DN150 CL2500 Type 11/DS EN 1759-1 | 368.3 | 235 | 0 | 168.3 | 108 | Type 11 - weld neck | 54 | Stainless steel | 150 | 2500 | — | 8 | 15.5 | EN 1759-1 | X5CrNi18-10 / 1.4301 | M52x4 | Type DS - with small groove | 158.36 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X2CrNiMo17-12-3 / 1.4432 | M30 | Type C - with tongue | 24.4 |
|
| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X2CrNiMoN25-7-4 / 1.4410 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X1NiCrMoCuN25-20-7 / 1.4529 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X2CrNiMoN22-5-3 / 1.4462 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X1NiCrMoCu25-20-5 / 1.4539 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X1CrNiMoCuN20-18-7 / 1.4547 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X6CrNiNb18-10 / 1.4550 | M30 | Type C - with tongue | 24.4 |
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| Stainless steel weld neck flange DN125 PN160 Type 11/C EN 1092-1 | 250 | 180 | 115 | 139.7 | 44 | Type 11 - weld neck | 33 | Stainless steel | 125 | 0 | — | 8 | 8 | EN 1092-1 | X6CrNiTiB18-10 / 1.4941 | M30 | Type C - with tongue | 24.4 |
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